The Flame King 3/8" ID Thermoplastic Hose Assembly is designed for reliable LP propane connections in RVs, residential, and outdoor applications. Featuring durable thermoplastic construction and 3/8" female flare swivel fittings on both ends, this weatherproof hose provides a secure, leak-resistant connection between portable propane equipment and gas supply systems.Commonly used for RV slide-outs, propane appliances, and gas distribution systems, this hose is approved for all RVIA applications in the USA and Canada. Built to withstand demanding conditions, it is rated for up to 350 PSI and operates in temperatures ranging from -40°F to 140°F. UL569/CSA 8.3-1 certified for safe use with LP propane gas.